PSY100H1 Lecture Notes - Lecture 4: Visual Acuity, Square Wave, Pacifier
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PSY100H1 Full Course Notes
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Visual fixation: known as by far the most employed technique, one can look at something without really attending to it. Non-nutritive sucking: take pacifier and put it in kids mouth and has sensor in it , and measure the pressure at which the infant sucks. If they do make the same response then they are generalizing. Asks the question can the infant integrate auditory and visual stimuli together , they will prefer to look at the visual information that matches the auditory. Visual acuity=how well infant can see, includes complexity , research on visual acuity is based on the preferential looking. Is tested by square wave grating =alternative black and white shades, and the contrast that with a grey field and they will look at eh square wave , and keep narrowing space until they can no longer discriminate. Initially visual acuity is terrible, but between then and 6 months their ability to discriminate is near adult levels.
